[1] Univ Sao Paulo, Sch Med, Childrens Hosp, Div Pediat Endocrinol, BR-05403000 Sao Paulo, Brazil
[2] Univ Sao Paulo, Sch Med, Inst Psychiat, Div Funct Neurosurg,Dept Neurol, BR-01060970 Sao Paulo, Brazil
[3] Univ Sao Paulo, Sch Med, Inst Psychiat, Dept Psychiat, BR-01060970 Sao Paulo, Brazil
[4] Univ Toronto, Toronto Western Hosp, Div Neurosurg, Toronto, ON M5T 1R8, Canada
[5] Ctr Addict & Mental Hlth, Div Neuroimaging, Toronto, ON M5T 1R8, Canada